MTV Act asked Apple if it was planning on releasing a more
diverse set of emoji. Here was the company's response:

Tim [Cook] forwarded your email to me. We agree with you.
Our emoji characters are based on the Unicode standard, which is
necessary for them to be displayed properly across many
platforms. There needs to be more diversity in the emoji
character set, and we have been working closely with the Unicode
Consortium in an effort to update the standard.

So there you have it. Now everyone can have an emoji that looks
like them. And I might finally get the sandwich emoji I've been
craving.